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3 years ago

Population: In a city of 40,000 people, there are 15,000 people under 25 years of age. What percent of the

Mathematics

1 answer:

egoroff_w [7]3 years ago

6 0

Answer:

26 percent would be your answer.

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What is the standard form of the polynomial: 9x(squared)+ 5x+27+2x(to the power of 3

REY [17]

Step-by-step explanation:

hope it's helpful.........

6 0

3 years ago

Justify x over 3 minus 7 equals 11

drek231 [11]

Answer:

54/3-7=11

Step-by-step explanation:

x/3-7=11

+7 +7

(3)x/3=18(3)

x=54

Check

54/3-7=11

18-7=11

11=11

4 0

3 years ago

A rancher has 2 comma 200 feet of fencing to enclose a rectangular pig pen. However, one side of the pen lies along a river and

DiKsa [7]

Answer:

$A = 2200x - 2x^2$

Step-by-step explanation:

Let's x be the length of the side that is NOT the same as the side along the river (or in opposite). From the fencing perimeter of 2200ft we can calculate the other side y of the rectangular:

y = 2200 - 2x

The area A of the pen would be the product of the 2 sides

$A = xy = x(2200 - 2x) = 2200x - 2x^2$

7 0

3 years ago

Find f¹(x) for the function f(x) = -4. 2 f¹(x) = [?]x + [ ]

g100num [7]

Answer:

${f}^{ - 1}(x) = 2x + 8$

Step-by-step explanation:

$f(x) = \frac{x}{2} - 4 \\ \\ y = \frac{x}{2} - 4 \\ \\ y = \frac{x - 8}{2} \\ \\ x = 2y + 8 \\ \\ {f}^{ - 1} (x) = 2x + 8$

4 0

2 years ago

7 to the negative 3rd porwer times 7 to the negative 2nd porwer times 2 the 0 power divided by 7 to negative 1st power times 7 t

Jobisdone [24]

oof

remember some rules

(a/b)(c/d)=(ac)/(bd)

$\frac{x^a}{x^b}=x^{a-b}$

$x^0=1$

$(x^a)(x^b)=x^{a+b}$

$x^{-a}=\frac{1}{x^a}$

$\frac{(7^{-3})(7^{-2})(2^0)}{(7^{-1})(7^{-4})(2^3)}=$

$\frac{(7^{-3-2})(2^0)}{(7^{-1-4})(2^3)}=$

$\frac{(7^{-5})(2^0)}{(7^{-5})(2^3)}=$

$(\frac{7^{-5}}{7^{-5}})(\frac{2^0}{2^3})=$

$(7^{-5-(-5)})(2^{0-3})=$

$(7^0)(2^{-3})=$

$\frac{1}{2^3}=$

$\frac{1}{8}$

7 0

3 years ago